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Biomedical subjects

O Kitamura

Publications and source records attributed to O Kitamura.

At least 37 records · Page 2Linked to original sources
PubMed1993

Hereditary recombined three-allele variant of the Gc system.

A three-allele variant with Gc 2, Gc 1F and Gc 1A2 alleles was detected in both a baby and his mother during paternity testing by isoelectric focusing. His father had a normal Gc phenotype, Gc 2-1F. Further examination of his mother's relatives revealed that his grandfather also had the same three-allele variant, while his grandmother and his aunt had normal Gc 2-1F and Gc 2-2. From these results, it was considered that the Gc 1F and Gc 1A2 alleles were on the same single chromosome. It was suggested that recombination had occurred between two chromosomes that had the Gc 1F and Gc 1A2 allele, respectively, forming the variant allele Gc 1F1A2 on a single chromosome.

Alleles↗
PubMed1993

[Paternity test by DNA fingerprinting in a sexual assault].

We have applied the method of DNA fingerprinting to resolve a paternity case. DNA samples were extracted from the blood of mother, child (4 months old fetus) and alleged father, digested with the restriction endonuclease Hinf I and Hae III, size separated by agarose gel electrophoresis, and hybridized with the multi-locus minisatellite probe B.E.S.T.-MZ1.3 digoxigenin. DNA fingerprinting patterns in the child and alleged father indicated possibly paternity. Following extraction of DNA from cord blood (infant of 26 to 39 week's gestation), the quantity of DNA isolated was determined on a spectrophotometer at 260 nm and its integrity by electrophoresis in agarose gels. We found that high-molecular-weight DNA could be recovered in large quantities from cord blood as well as from adult blood.

DNA↗
PubMed1992

Flow cytometric analysis of nuclear DNA content of duct cell carcinoma of the pancreas.

BACKGROUND: This study was designed to evaluate the efficacy of nuclear DNA content analysis in determining the prognosis of carcinoma of the pancreas. METHODS: Resected and paraffin-embedded specimens from 72 patients with duct cell carcinoma of the pancreas were examined, and flow cytometry was used to explore the relationship between DNA ploidy and TNM classification or histologic grade. RESULTS: DNA aneuploidy was found histologically in 42.9%, 56.8%, and 71.4% of Grade 1, 2, and 3 tumors, respectively. DNA ploidy showed a statistically significant correlation with T category and retroperitoneal invasion. The cumulative survival rate of patients with retroperitoneal invasion was shorter than that of those without retroperitoneal invasion. Among the patients with retroperitoneal invasion, those with DNA aneuploidy had a significantly shorter survival time than did those with DNA diploidy. CONCLUSIONS: The DNA ploidy pattern, in combination with the presence or absence of retroperitoneal invasion, appears to be useful in predicting the prognosis for duct cell adenocarcinoma of the pancreas.

Adult↗
PubMed1992

An asthmatic death while under Chinese acupuncture and moxibustion treatment.

A 29-year-old Japanese man with bronchial asthma died while undergoing Chinese acupuncture and moxibustion treatment. The autopsy findings of the lungs were compatible with a diagnosis of severe asthma. Further, on immunohistochemical examination, hypoxic brain damage and an unusual distribution of pulmonary surfactant were found. In contrast, only minor hemorrhages in the right semispinal muscle and round-shaped bruises were seen as a result of Chinese acupuncture and moxibustion treatment. Thus, it was concluded that the man had died from a severe asthmatic attack.

Acupuncture Therapy↗
PubMed1991

Demonstration of hemoglobin in the kidney of battered children.

We examined specimens of renal tissue taken from 40 cadavers of children (18 battered and 22 non-battered children) by an immuno-peroxidase technique using anti-human hemoglobin (Hb) or anti-human myoglobin (Mb) antiserum. Hb was detected in the proximal tubular cells of the kidney of six battered children who had sustained severe or moderate external injuries, whereas Mb was not found. In contrast, Mb was detected and Hb was not found in the renal tubules of one child who had died from a traffic accident. In other cases including 13 cases of children who died from a sudden bout of physical violence or some other impulsive act and 4 cases of children who had died from malnutrition, neither Hb nor Mb was found in the kidney. Our findings appear to indicate that large quantities of Hb were released from the multiple lesions of the battered children, entered the circulation and were deposited in the kidneys. It thus seems that the immunohistochemical detection of Hb in the kidney may be useful for evidencing the extensive antemortem bruises which are often found in battered children.

Adolescent↗
PubMed1990

[A double blind study to evaluate the optimal dose and its frequency for oral administration of OK-432 (picibanil) by immunological parameters (the 2nd report)].

The present study was designed to determine the optimal dose and frequency of oral administration of a biological response modifier, OK-432 (Picibanil), which has been used for cancer immunotherapy by injection. Ninety one stomach cancer patients were randomly assigned into 7 groups and were administered a placebo or OK-432 at a dose of 5, 20 or 40KE, once or 3 times a week before operation (5KE X 1/W, 20KE X 1/W, 40KE X 1/W, or X 3/W). Misregistration excluded 3 patients and the data of 88 patients were analysed. There was no significant difference in the background status of the patients in each group. In the 1st report, we already showed that 5KE X 3/W might be the optimal regimen to augment the natural killer (NK) activity of regional lymph node lymphocyte (RNL). In the 2nd report, we searched for the optimal regimen to augment the antitumor immunity of T lymphocytes. The proliferative response of RNL to SuPR (protein derived from OK-432) was augmented in all the groups administered OK-432. The responsiveness of PBL to autologous tumor extract enhanced by IL-2 was augmented by 5KE X 1/W, and that of RNL was augmented by 5KE X 3/W. The killer/suppressor (Leu2+15-/Leu2+15+) ratio in RNL increased in all the groups administered OK-432 especially in 20KE X 3/W group. Oral administration of OK-432 augmented both non-specific and the specific antitumor immunity of PBL as well as RNL, and 5KE X 3/W may be the optimal regimen to augment the antitumor immunity, especially of RNL.

Administration, Oral↗
PubMed1990

[A double blind study of the evaluation of the optimal dose and its frequency in oral administration of OK-432 (Picibanil) by immunological parameters (the 1st report)].

A biological response modifier, OK-432 (Picibanil) administered by injection has been used for cancer immunotherapy. The present study was designed to determine the optimal dose and frequency of oral administration of OK-432. Ninety-one stomach cancer patients were randomly assigned into 7 groups and were administered a placebo or OK-432 at a dose of 5, 20 or 40 KE, once or 3 times a week before their operation (5 KE X 1/W, 20 KE X 1/W, 40 KE X 1/W, or X3/W). ++Missregistration excluded 3 patients and the data of 88 patients were analysed. There was no significant difference in the background status of the patients in each group. The NK activity of PBL was augmented by the administration of 40 KE X 1/W or 20 KE X 3/W and that of RNL was augmented by the administration of 5 KE X 3/W or 40 KE X 1/W, in conjunction with an increase in the number of % positive cells of leu 11a+ or leu 19+ analysed by flow cytometry. The killing activity of PBL, RNL, or MNL against allogeneic lined gastric cancer cells (KATO III) was not augmented by the oral administration of OK-432 for one week. The skin reactivity to Su-PS or PPD, serum levels of tumor markers, or serum levels of immunoglobulins did not help in determining the optimal dose or its frequency. These results suggest that 5 KE X 3/W may be the optimal regimen to augment the antitumor immunity of RNL.

Administration, Oral↗
PubMed1990

[Histological study on possibility of senile dementia diagnosis in forensic autopsy cases].

Forensic autopsied brains from 57 cases were examined to establish histopathological criteria for normal aging and senile dementia. Senile plaques, neurofibrillary tangles (NFT), amyloid angiopathy and lipofuscin deposits were quantified in the occipital lobe and in the hippocampus. Histopathological data were analysed by the image analyzer. The primitive senile plaque (SPP) and lipofuscin deposits were observed over age of 50. The senile plaque with core (SPC) and NFT were presented in the cases above 70 year of age. There were close correlation between the individual age in non-demented, and the number, size and occupation ratio of SPC in the occipital lobe and hippocampus. In the dementia cases, the occupation ratio of SPC in the hippocampus and the number of SPP in the occipital cortex were significantly increased against the non-demented group.

Aged↗
PubMed1989

A case of hypoxic brain damage consequent to ligature strangulation.

A case of delayed death following strangulation is reported. A 43-year-old woman died 18 days after being subjected to strangulation. The autopsy and neuropathological findings are presented. Informatively, enzymatic immunohistochemical techniques were used for the neuropathological investigation.

Adult↗
PubMed1985

[A case of advanced male breast cancer treated effectively with estrogen].

A 47-year-old man was admitted because of a left axillary tumor. A biopsy of the tumor disclosed adenocarcinoma. The bone survey showed multiple sclerotic metastases. Thirteen months after his first admission, a left breast tumor developed and a simple mastectomy revealed a papillotubular carcinoma. Skin metastases appeared postoperatively and were exacerbated with accumulation of pericardial effusion and a high CEA level (401.7 ng/ml) despite radiation and chemotherapy. Estrogen therapy with diethylstilbestrol sodium phosphate was started, resulting in the disappearance of pericardial effusion and skin metastases. The patient remains well 10 months after starting estrogen therapy with a normal CEA level.

Adenocarcinoma↗
PubMed1975

Ligation of a branch of the portal vein for carcinoma of the liver.

Portal branch ligation, a new surgical treatment for unresectable carcinoma of the liver, was performed in twenty patients. All the patients tolerated the procedure, and morbidity and mortality were minimal, even in patients in poor general condition. The responses to ligation differed considerably, but significant palliation was attained in some patients and one survived six years. The effect of portal branch ligation on the tumor appears to be closely related to the degree of tumor vascularity, tumor malignancy, and portal circulatory disturbances such as cirrhosis, portal hypertension, or portal thrombosis. We believe that the present procedure can be recommended for clinical application in some patients with unresectable carcinoma of the liver.

Adenoma, Bile Duct↗